Czech J. Food Sci., 2013, 31(1):49-54 | DOI: 10.17221/378/2011-CJFS
Effects of several sanitisers for improving quality attributes of minimally processed Fragaria vesca strawberryOriginal Paper
- Agri-Food Technological Institute of Extremadura (INTAEX), Badajoz, Spain
In order to decrease microbial contamination, fresh-cut industry commonly uses sodium hypochlorite as a disinfection agent, however, the by-products such as trihalometanes and chloramines are potentially harmful for human health making necessary the search for alternative disinfectant agents. A comparative study on the effectiveness of different disinfection methods on the quality of minimally processed F. vesca strawberry is presented. The fruit was processed in a clean room through the following steps: reception, cutting, washing, draining, and packaging. The processed strawberries were packaged in thermally sealed polypropylene trays using passive modified atmosphere. During a storage period of 8 days at 4ºC, the quality parameters, sensory attributes, and microbial counts were determined. As conclusion, the use of lactic acid at a concentration of 2.5 g/l in the washing water was effective in reducing microbial counts, maintaining the sensory attributes and quality of the product during the storage. The present study demonstrates that the use of lactic acid in the washing water could be a good alternative of the use of sodium hypochlorite and suggests that strawberries could make an acceptable fresh-cut product.
Keywords: fresh cut; lactic acid; microbial counts; sodium hypochlorite
Published: February 28, 2013 Show citation
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References
- Aguayo E., Jansasithorn R., Kader A.A. (2006): Combined effects of 1-methylcyclopropene, calcium chloride dip, and/or atmospheric modification on quality changes in fresh-cut strawberries. Postharvest Biology and Technology, 40: 269-278
Go to original source... - Brouillard R., Wigand M.C., Dangles O., Cheminat A. (1991): pH and solvent effects on the copigmentation reaction of malvin with polyphenols, purine and pyrimidine derivatives. Journal of the Chemical Society, 2: 1235-1241. Go to original source...
- Campaniello D., Bevilacque A., Sinigaglia M., Corbo M.R. (2008): Chitosan: Antimicrobial activity and potential applications for preserving minimally processed strawberries. Food Microbiology, 25: 992-1000. Go to original source...
Go to PubMed... - Corbo M.R., Lanciotti R., Gardini F., Sinigaglia M., Guerzoni M.E. (2000): Effects of hexanal, trans-2-hexenal, and storage temperature on shelf life of fresh sliced apples. Journal of Agricultural of Food Chemistry, 48: 2401-2408. Go to original source... Go to PubMed...
- Hutchings J.B. (1994): Food Colour and Appearance. Blackie, London. Go to original source...
- ISO 4833 (1991): Microbiology - General guidance for the enumeration of micro-organisms - Colony count technique at 30 degrees C. International Organization for Standardization, Geneva.
- ISO 7954 (1988): Microbiology. General guidance for enumeration of yeasts and moulds - Colony count technique at 25 degrees Celsiu. International Organization for Standardization, Geneva.
- ISO 7402 (1993): Microbiology - General guidance for the enumeration of Enterobacteriaceae without resuscitation - MPN technique and colony-count technique. International Organization for Standardization, Geneva.
- Martín-Belloso O., Soliva-Fortuny R., Oms-Oliu G. (2006): Fresh-cut fruits. In: Hui Y.H. (ed.): Handbook of Fruits and Fruit Processing. Blackwell Publishing, Iowa: 129-144. Go to original source...
- Martínez-Sánchez A., Allende A., Bennett R.N., Ferreres F., Gil M.I. (2006): Microbial, nutritional and sensory quality of rocket leaves as affected by different sanitizers. Postharvest Biology Technology, 42: 86-97. Go to original source...
- Nguyen-The C., Carlin F. (1994): The microbiology of minimally processed fresh fruits and vegetables. Critical Reviews in Food Science and Nutrition, 34: 371-401. Go to original source... Go to PubMed...
- Ölmez H., Kretzschmar U. (2009): Potential alternative disinfection methods for organic fresh-cut industry for minimizing water consumption and environmental impact. A review. LWT-Food Science Technology, 42: 686-693. Go to original source...
- Parish M.E., Beuchat L.R., Suslow T.V., Harris L.J., Garret E.H., Farber J.N., Busta F.F. (2003): Methods to reduce/eliminate pathogens from fresh and fresh-cut produce. Comprehensive Reviews in Food Science and Food Safety, 2: 161-173. Go to original source...
- Regulation (EC) No 2073/2005 of 15 November 2005 on microbiological criteria for foodstuffs.
- Silveira A.C., Aguayo E., Artés F. (2010): Emerging sanitizers and Clean Room packaging for improving the microbial quality of fresh-cut 'Galia' melon. Food Control, 21: 863-871. Go to original source...
- Voss D.H. (1992): Relating colourimeter measurement of plant colour to the Royal Horticultural Society colour chart. HortScience, 27: 1256-1260. Go to original source...
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